This instalment of the Lunchtime Lecture series focused on 'Planning for the subsurface and underground space use' and was organised in coordination with Itacus.

The episode featured three lectures and finished with a Q&A with all speakers.

• Insights and philosophy of using the underground: Han Admiraal (Itacus co-chair)

• Policy development and case examples: Antonia Cornaro (Itacus co-chair)

• Underground urbanism in Africa: Abidemi Agwor (Itacus National Action Think Deep Programme Lead)